CVE-2026-16277
A stack-based buffer overflow was found in rpcbind's rpcinfo utility. When querying a remote rpcbind service with rpcinfo -l, address information returned by the server is copied into a fixed-size buffer without sufficient bounds checking. A malicious or compromised rpcbind server could use this flaw to crash the rpcinfo client, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
CSIRTS triage
- What
- A stack buffer overflow exists in the rpcinfo rpcbaddrlist() function.
- Who is affected
- Deployments using rpcbind.
- Urgency
- Medium urgency due to a CVSS score of 6.5 indicating moderate severity.
- Action
- Update rpcbind to the latest version to mitigate this vulnerability.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.28% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 20% of all EPSS-scored CVEs.
Advisory coverage (2)
External references
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